Ahsoka

Ahsoka by E.K. Johnston
For fans of The Clone Wars and Star Wars: Rebels TV shows, this book tells the story of Anakin Skywalker's one-time padawan Ahsoka Tano in the time between her leaving the Jedi order and showing up as a leader of the Rebellion.

Though officially a young adult novel, Ahsoka is 400 pages long and a part of the same more-mature publishing line as 2015's fan favorite book Lost Stars.

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This is a book from the New Canon timeline! It's guaranteed to be consistent with future movies, TV shows, books, and comics (and all new stories since mid-2014).

Star Wars: The Clone Wars movie novelization

Star Wars: The Clone Wars movie novelization by Karen Traviss
Author Karen Traviss, known for her vivid and realistic characters, writes this high-quality adaptation of The Clone Wars film that kicked off the animated series.

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This is a movie novelization from the Legends timeline. Though the movie itself is canon, original content in the book could be contradicted by future books, movies, or TV shows (if so, you can think of it as an alternate universe).

The Clone Wars tie-in novels

The Clone Wars tie-in novels by Karen Miller & Karen Traviss
These four books tell stories connected to, but not directly based on, The Clone Wars 3D-animated TV series.

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The Clone Wars: Wild Space by Karen Miller
The Clone Wars: No Prisoners by Karen Traviss
Clone Wars Gambit: Stealth by Karen Miller

Clone Wars Gambit: Siege by Karen Miller

This is a prequel era series from the Legends timeline. It may be contradicted by newer books, movies, or TV shows (if so, just think of it as an alternate universe).